1242201402 has 24 divisors (see below), whose sum is σ = 2898470484. Its totient is φ = 382215744.

The previous prime is 1242201397. The next prime is 1242201449. The reversal of 1242201402 is 2041022421.

1242201402 is a `hidden beast` number, since 1 + 242 + 20 + 1 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1237702761 + 4498641 = 35181^2 + 2121^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2654043 + ... + 2654510.

Almost surely, 2^1242201402 is an apocalyptic number.

1242201402 is an abundant number, since it is smaller than the sum of its proper divisors (1656269082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242201402 is a wasteful number, since it uses less digits than its factorization.

1242201402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308574 (or 5308571 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1242201402 is about 35244.8776703793. The cubic root of 1242201402 is about 1074.9724606610.

Adding to 1242201402 its reverse (2041022421), we get a palindrome (3283223823).

The spelling of 1242201402 in words is "one billion, two hundred forty-two million, two hundred one thousand, four hundred two".